Cohen David, Blinder George, Perez Ronen, Raveh David
Department of Otolaryngology and Head and Neck Surgery, Shaare Zedek Medical Center, Jerusalem, Israel.
Int Tinnitus J. 2005;11(2):158-62.
Both the increasing usage of intratympanic medication to the inner ear through the round window and the popularity of cochlear implantation have raised interest in the anatomy of the round-window niche (RWN). The objectives of this study were to measure the RWN and to standardize a computed tomographic projection for measuring it. We included patients of all ages who underwent computed tomography for various reasons. We measured computed tomographic images acquired from 214 patients aged 4-85 years and included 414 ears and excluded 14 inflamed "wet" ears. We measured depth, width, and shape of the RWN and skull width. The RWN dimensions did not change with age, whereas the skull width increased with age in both genders throughout the patients' entire life. Folds and soft tissue could not be demonstrated in computed tomographic imaging. In conclusion, a special oblique projection that clearly demonstrates the RWN was reconstructed, and this reconstruction allows for standardized measuring.
通过圆窗向内耳鼓室内给药的使用增加以及人工耳蜗植入的普及，都引发了人们对圆窗龛（RWN）解剖结构的兴趣。本研究的目的是测量RWN并标准化用于测量它的计算机断层扫描投影。我们纳入了因各种原因接受计算机断层扫描的各年龄段患者。我们测量了从214名年龄在4至85岁的患者获取的计算机断层扫描图像，包括414只耳朵，并排除了14只发炎的“湿”耳。我们测量了RWN的深度、宽度和形状以及颅骨宽度。RWN尺寸不随年龄变化，而在患者的整个生命过程中，颅骨宽度在两性中均随年龄增加。在计算机断层扫描成像中无法显示褶皱和软组织。总之，重建了一种能清晰显示RWN的特殊斜位投影，这种重建允许进行标准化测量。
